The Case IH 1397290044 is a genuine OEM starting washer designed for a wide range of Case IH agricultural tractors. This essential component ensures correct spacing and smooth operation within the engine's starting mechanism. With an inner diameter of 10.5 mm, an outer diameter of 18 mm, and a thickness of 1.5 mm, this washer provides precise fitment and reliable performance. It is compatible with numerous Case IH series including 33, 40, 44, 45, 55, 56, 85, 95, C, CX, JX, MX, PUMA, QUANTUM, and VJ models.